Many gardeners and cooking enthusiasts find themselves searching for 'm.r tomato' after hearing the name in conversation or seeing it written informally. The good news is you've landed in the right place to clear up this common gardening confusion once and for all.
Why 'M.R. Tomato' Isn't What You Think
When gardeners search for 'm.r tomato,' they're almost always referring to Mr. Stripey, one of the most beloved bi-colored heirloom tomatoes. The confusion stems from how the name is sometimes abbreviated or misheard in gardening circles. According to the USDA Plant Germplasm Introduction and Testing Research Unit, there is no officially registered tomato variety under the designation 'M.R. Tomato.'
The Mr. Stripey tomato (Solanum lycopersicum 'Mr. Stripey') first appeared in American seed catalogs in the 1990s, though its exact origins remain somewhat mysterious. Some gardening historians believe it may have European roots, possibly from Germany where similar bi-colored varieties have been cultivated for generations.
Mr. Stripey vs. Similar-Sounding Varieties
Several tomato varieties have names that could be confused with 'm.r tomato.' Understanding these differences is crucial for gardeners selecting the right seeds:
| Variety Name | Appearance | Flavor Profile | Weight Range | Days to Maturity |
|---|---|---|---|---|
| Mr. Stripey | Red and yellow stripes, often marbled | Sweet with mild acidity, complex flavor | 1-2 lbs (450-900g) | 75-80 days |
| Mortgage Lifter | Uniform pink to red | Balanced sweet-tart, meaty texture | 1.5-2 lbs (680-900g) | 80-85 days |
| Marnero | Yellow with red streaks | Very sweet, low acidity | 0.5-1 lb (225-450g) | 65-70 days |
| Mountain Rouge | Deep red with green shoulders | Bright acidity, classic tomato flavor | 0.75-1 lb (340-450g) | 70-75 days |
Identifying True Mr. Stripey Tomatoes
When distinguishing genuine Mr. Stripey tomatoes from similar varieties, focus on these key characteristics:
- Color pattern: Irregular red and yellow stripes that often appear marbled rather than neatly segmented
- Shoulder color: Typically retains green shoulders longer than most varieties, even when nearly ripe
- Shape: Slightly flattened globe shape with pronounced ribbing near the stem
- Interior: Multicolored gel and seed pattern with red and yellow sections
According to research from Cornell University's Vegetable Program, the distinctive coloration comes from a genetic trait that affects lycopene distribution in the fruit. This creates the beautiful marbled effect that makes Mr. Stripey so visually striking on sandwiches and salads.
Growing Mr. Stripey Successfully
While Mr. Stripey tomatoes produce stunning fruit, they present some unique growing challenges compared to standard varieties:
Essential Growing Conditions
- Support requirements: Use sturdy cages or trellises as the large fruits can weigh down branches
- Disease resistance: Moderate resistance to common tomato diseases but susceptible to cracking in inconsistent moisture conditions
- Pruning needs: Minimal pruning recommended to maintain fruit production and prevent sunscald
- Harvest timing: Pick when the yellow portions turn golden and the red areas deepen in color (don't wait for full red coloration)
Gardeners in cooler climates should note that Mr. Stripey performs best in longer growing seasons. The University of Minnesota Extension recommends starting seeds indoors 6-8 weeks before the last frost date for best results in northern regions.
Culinary Applications for Mr. Stripey Tomatoes
The complex flavor profile of Mr. Stripey tomatoes makes them exceptionally versatile in the kitchen:
- Fresh preparations: Ideal for caprese salads, sandwiches, and bruschetta where their visual appeal shines
- Cooking limitations: Best used fresh as cooking diminishes their distinctive flavor complexity
- Preservation: Can be canned as whole tomatoes or in mixed varieties, but not recommended for clear tomato sauces due to color variation
- Pairing suggestions: Complements basil, balsamic vinegar, fresh mozzarella, and mild olive oils
Professional chefs note that the sugar-acid balance in Mr. Stripey makes it particularly well-suited for fresh salsas where you want both sweetness and tang. Unlike many large heirlooms, Mr. Stripey maintains better structural integrity when sliced, making it a favorite for gourmet burgers and sandwiches.
Where to Find Authentic Mr. Stripey Seeds
Due to the popularity and confusion around this variety, many seed companies sell mislabeled 'Mr. Stripey' seeds. For authentic varieties:
- Purchase from reputable heirloom seed companies like Seed Savers Exchange or Baker Creek Heirloom Seeds
- Look for the full botanical designation 'Solanum lycopersicum 'Mr. Stripey'' on seed packets
- Avoid seeds labeled simply as 'M.R. Tomato' or 'Mystery Stripe'
- Consider joining local seed exchange groups where experienced gardeners share verified seeds
The Seed Savers Exchange maintains a verified seed bank of authentic Mr. Stripey tomatoes, having preserved this variety since 1982. Their catalog notes that true Mr. Stripey consistently produces the distinctive bi-color pattern, while imposter varieties often show less defined striping or different growth habits.
Common Misconceptions About 'M.R. Tomato'
Several persistent myths surround this variety that deserve clarification:
- Myth: 'M.R.' stands for 'Medium Red' or 'Mixed Red'
- Reality: The name 'Mr. Stripey' appears to have originated as a descriptive name without official abbreviation
- Myth: All bi-colored tomatoes are Mr. Stripey
- Reality: Many distinct bi-colored varieties exist, including German Orange, Tigerella, and Black Sea Man
- Myth: Mr. Stripey is a hybrid variety
- Reality: It's an open-pollinated heirloom that breeds true from saved seeds








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